Jaeger LeCoultre, Master, Model: 1362510, Automatic mechanical, 18k rose gold, case diameter: 39mm, • Case: 18K rose gold material, case diameter: 39mm, thickness: 9.3mm, water resistance: 50 meters • Movement: Jaeger-lecoultre's self-produced 925 automatic mechanical movement, equipped with 30 jewels, with a power reserve of approximately 70 hours and a frequency of 28,800 vibrations per hour • Dial: Beige eggshell pattern dial, with gold-plated hour markers and Princess Cone-shaped hands, blue steel central seconds hand, and an integrated date and moon phase display window at 6 o 'clock • Strap: Dark brown alligator leather strap with rose gold pin buckle. The case back is designed with transparent sapphire crystal, allowing you to observe the full extended warranty of the movement.